Euler: 2.718281828459045 
Pi: 3.141592653589793 
sqrt 2.0: 1.4142135623730951 
ln 100: 4.605170185988092 
log(10) 100: 2.0 
exp 3: 20.085536923187668 
abs -1: 1 
floor 23.536: 23 
ceil 23.536: 24 
2 ^ 8: 256